1878966625 has 8 divisors (see below), whose sum is σ = 2344950504. Its totient is φ = 1503173200.

The previous prime is 1878966619. The next prime is 1878966629. The reversal of 1878966625 is 5266698781.

1878966625 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5721664 + 1873244961 = 2392^2 + 43281^2 .

It is not a de Polignac number, because 1878966625 - 2⁹ = 1878966113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1878966625.

It is not an unprimeable number, because it can be changed into a prime (1878966629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7515742 + ... + 7515991.

It is an arithmetic number, because the mean of its divisors is an integer number (293118813).

Almost surely, 2^1878966625 is an apocalyptic number.

It is an amenable number.

1878966625 is a deficient number, since it is larger than the sum of its proper divisors (465983879).

1878966625 is an equidigital number, since it uses as much as digits as its factorization.

1878966625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15031748 (or 15031738 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The square root of 1878966625 is about 43347.0486307892. The cubic root of 1878966625 is about 1233.9749836663.

The spelling of 1878966625 in words is "one billion, eight hundred seventy-eight million, nine hundred sixty-six thousand, six hundred twenty-five".